¿Who is stronger, Buu or Gohan?

Majin Buu is a pivotal antagonist in the "Dragon Ball" series, introduced during the "Majin Buu Saga" of "Dragon Ball Z." Created by the dark wizard Bibidi, Buu is an ancient entity with immense power and a malleable, pink physique. Throughout the series, Buu undergoes several transformations, each altering his personality and power levels, including Innocent Buu, Evil Buu, Super Buu, and Kid Buu. His abilities are vast and versatile, encompassing regeneration, absorption, and transmutation, such as turning adversaries into sweets. Despite his initial role as a villain, aspects of Buu's character, particularly in his Innocent form, display a capacity for change and even benevolence. This complexity adds depth to his character, making him one of the most memorable antagonists in the "Dragon Ball" universe.

Gohan, the firstborn son of Goku and Chi-Chi, is a central figure in the "Dragon Ball" series. Introduced during the "Saiyan Saga," his latent potential becomes evident when he confronts Raditz to protect his father. Trained initially by Piccolo, Gohan evolves from a timid child into a formidable warrior. His pivotal moment arises during the "Cell Saga," where he attains the Super Saiyan 2 transformation, defeating Cell and showcasing his immense power. Despite his combat prowess, Gohan aspires to be a scholar, balancing his academic pursuits with his responsibilities as a protector of Earth. In the "Majin Buu Saga," he adopts the Great Saiyaman persona to safeguard his identity while fighting crime. Later, he marries Videl, and they have a daughter named Pan. Throughout the series, Gohan's journey reflects his struggle to harmonize his inherent strength with his personal aspirations.